Earl Mael-Sechlainn of Cill Dara

Earl Mael-Sechlainn Ua Mael-Sechlainn of Cill Dara (2 January 1043-), also known as Malachy O'Malachy of Kildare, was the Earl of Cill Dara (County Kildare) under King Einri of Eire. In 1090, he decided to become a vassal of King Einri due to his status as a hero of the First Crusde, allowing for Einri to unite Ireland.